Improving Hypertension Control in CHina and ARGEntina With a Mobile APP-based Telecare System

Inclusion Criteria: * Male and female subjects; * Age 18-80 years; * Either the patient or another person close to him/her should possess a smartphone compatible with the ESH CARE app and be capable of using it; * Uncontrolled (untreated or treated) hypertension, defined as office BP ≥140/90 mmHg, and Ambulatory 24h ABP ≥130/80 mmHg Exclusion Criteria: * eGFR \<45 mL/min/1.73 m2 (CKD-EPI creatinine equation 2009); * Severe uncontrolled hypertension (i.e. BP ≥200/120 mmHg despite treatment); * Known secondary hypertension; * Orthostatic hypotension (SBP fall \> 20 mmHg on standing); * Unstable clinical conditions or severe disease with short life expectation; * Known atrial fibrillation; * Hepatic disease as determined by either AST or ALT values \> 2 times the upper limit of normal; * History of gastrointestinal surgery or disorders which could interfere with drug absorption * History of malignancy including leukaemia and lymphoma (but not basal cell skin cancer) within the last 5 years; * History of clinically significant autoimmune disorders such as systemic lupus erythematosus; * History of drug or alcohol abuse within the last 5 years; * History of non-compliance to medical regimens and/or patients who are considered potentially unreliable; * Dementia (clinical diagnosis); * Inability or unwillingness to give free informed consent; * Inability to use even simple communication technologies; * Pregnancy or planned pregnancy during study period